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Differences What are the advantages of each

Front view of Intel Core i3 3220T

Reasons to consider the
Intel Core i3 3220T

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Significantly newer manufacturing process 22 nm vs 32 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Higher clock speed 2.8 GHz vs 2.6 GHz Around 10% higher clock speed
Significantly lower typical power consumption 28.44W vs 52.81W More than 45% lower typical power consumption
More l3 cache per core 1.5 MB/core vs 1 MB/core 50% more l3 cache per core
Better overclocked clock speed (Air) 2.87 GHz vs 2.6 GHz More than 10% better overclocked clock speed (Air)
Significantly lower annual home energy cost 8.43 $/year vs 15.66 $/year More than 45% lower annual home energy cost
Significantly lower annual commercial energy cost 30.66 $/year vs 56.94 $/year More than 45% lower annual commercial energy cost
Slightly better overclocked clock speed (Water) 2.8 GHz vs 2.6 GHz Around 10% better overclocked clock speed (Water)
Front view of AMD Opteron 43GK HE

Reasons to consider the
AMD Opteron 43GK HE

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Much more l2 cache 8 MB vs 1 MB 8x more l2 cache; more data can be stored in the l2 cache for quick access later
More l3 cache 8 MB vs 3 MB Around 2.8x more l3 cache; more data can be stored in the l3 cache for quick access later
More cores 8 vs 2 6 more cores; run more applications at once
Supports more CPUs in SMP configuration 2 vs 1 Twice as many CPUs in SMP configuration
Much more l2 cache per core 1 MB/core vs 0.5 MB/core 2x more l2 cache per core
More threads 8 vs 4 Twice as many threads

Features Key features of the Core i3 3220T  vs Opteron 43GK HE 

clock speed

Core i3 3220T
2.8 GHz
Opteron 43GK HE
2.6 GHz

L2 cache

L3 cache

overclocked clock speed (air)

Core i3 3220T
2.87 GHz
Opteron 43GK HE
2.6 GHz

overclocked clock speed (water)

Core i3 3220T
2.8 GHz
Opteron 43GK HE
2.6 GHz

Specifications Full list of technical specs

summary

Core i3 3220T  vs
Opteron 43GK HE 
Clock speed 2.8 GHz 2.6 GHz
Cores Dual core Octa core
Socket type
LGA 1155
C32

features

Has a NX bit Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
SSE4a
AVX 1.1
SSE2
F16C
MMX
SSE4
XOP
AVX
SSE3
SSE
CLMUL
AMD64
SSE4.1
FMA4
FMA3
SSE4.2
CVT16
AMD-V
Supplemental SSE3
AES
Supports dynamic frequency scaling Yes Yes

memory controller

Memory controller Built-in Built-in
Channels Dual Channel Dual Channel
Supports ECC No Yes

details

Core i3 3220T  vs
Opteron 43GK HE 
Threads 4 8
L2 cache 1 MB 8 MB
L2 cache per core 0.5 MB/core 1 MB/core
L3 cache 3 MB 8 MB
L3 cache per core 1.5 MB/core 1 MB/core
Manufacture process 22 nm 32 nm
Max CPUs 1 2
Clock multiplier 28 13

overclocking

Overclocked clock speed 2.87 GHz 2.6 GHz
Overclocked clock speed (Water) 2.8 GHz 2.6 GHz
Overclocked clock speed (Air) 2.87 GHz 2.6 GHz

power consumption

TDP 35W 65W
Annual home energy cost 8.43 $/year 15.66 $/year
Annual commercial energy cost 30.66 $/year 56.94 $/year
Typical power consumption 28.44W 52.81W

bus

Architecture DMI HyperTransport 3.0
Transfer rate 5,000 MT/s 6,400 MT/s
Intel Core i3 3220T
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AMD Opteron 43GK HE
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